Consider the given reaction below:

Which of these is true regarding the reaction shown above?

$$
The ease of dehydrohalogen of alkyl halide with alcoholic KOH is
1. 3º > 2º > 1º
2. 3º < 2º < 1º
3. 3º > 2º < 1º
4. 3º < 2º > 1º

The products of hydrolysis of 

(1) HOCH₂CH₂CH₂CH₂ CHO + CH₃CHO

(2) HOCH₂CH₂CH₂CH₂OH + CH₃CHO

(3) HOCH₂CH₂CH₂CH₂CHO + C₂H₅OH

(4) HOCH₂CH₂CH₂CH₂CH₂OH + C₂H₅OH

The product A is :

(1)
(2)
(3)
(4)

Conversion of cyclohexene to cyclohexanol can be conveniently achieved by:

1. NaOH + H₂O

2. Br₂-H₂O

3. Hydroboration, oxidation

4. Hydroboration hydrolysis